angular-cn/packages/language-service/src/hover.ts

28 lines
889 B
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {TemplateInfo} from './common';
import {locateSymbol} from './locate_symbol';
import {Hover, HoverTextSection, Symbol} from './types';
export function getHover(info: TemplateInfo): Hover|undefined {
const result = locateSymbol(info);
if (result) {
return {text: hoverTextOf(result.symbol), span: result.span};
}
}
function hoverTextOf(symbol: Symbol): HoverTextSection[] {
const result: HoverTextSection[] =
[{text: symbol.kind}, {text: ' '}, {text: symbol.name, language: symbol.language}];
const container = symbol.container;
if (container) {
result.push({text: ' of '}, {text: container.name, language: container.language});
}
return result;
}